As to NC, depends on where you are located as to whether and what kind of services you can receive. In Charlotte with TD certification we had pullouts starting in K and full time gifted programming in third grade at a magnet. The talent development coordinator does some pullouts but also provides material and coaching to the teachers.

I was numbed to the irrelevance of grades as a kid, and have a hard time caring what arbitrary neatnes + accuracy loaded scoring has to tell me. But you may want to see her actual tests or other scoring and have a conference with the teacher if it is a big concern. When I look at DS8's tests I can see where he misread a question or accidentally wrote a word wrong and can compare that to whether I know he understands the concept.